The Honeywell R1234YF Refrigerant with UV Dye 8oz contains Honeywell R1234YF refrigerant and OEM-grade UV dye. The inclusion of UV dye eliminates the need to manually inject UV dye and enables the detection of refrigerant leaks, facilitating efficient diagnostics and repair. Both the refrigerant and the UV dye are the OEM-grade used in new vehicles by major automotive manufacturers. R1234YF is a refrigerant that is compatible with majority of vehicles manufactured after 2015*. R1234YF has ultra lower global warming impact and zero effects on ozone depletion. The 8-ounce-size can is convenient for one-time replenishment and can also be preserved for multiple uses.